/* * {
    margin: 0 auto;
} */

.center {
    background-image: url(../images/xmy/bg2.png);
    background-size: 100% 100%;
    background-repeat: no-repeat;
    width: 100%;
    height: 1200px;
}

.nav0 {
    width: 1400px;
    height: 100px;
}

.nav2 {
    display: flex;
    width: 1200px;
    height: 600px;
}

.nav2-1 {
    margin: 0;
    width: 500px;
    height: 600px;
}

.nav2-2 {
    width: 800px;
    height: 600px;
}

.box1 {
    float: right;
}

.box1 img {
    width: 600px;
    height: 450px;
}

.nav3 {
    display: flex;
    width: 1200px;
    height: 500px;
}

.nav3-1 {
    margin: 0;
    width: 500px;
    height: 500px;
}

.nav3-2 {
    margin: 0 auto;
    width: 100px;
    height: 500px;
}
.nav3-2 a {
    color: black;
    text-decoration: none;
}
.nav3-2 a:hover {
    color: #ffc42a;
    text-decoration: none;
}